Riskcovery

CVE-2026-89914

KVM: arm64: Sign-extend VA for range-based TLBI invalidation

State
Published
Severity
9.3 Critical
Published
Sep 16, 2026
Updated
Oct 19, 2026
Reserved
Sep 11, 2026

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

KVM: arm64: Sign-extend VA for range-based TLBI invalidation

When the decode_range_tlbi() helper was moved to be used for S1 TLBIs, the required sign extension was omitted. Add it.

As a result, special care must be taken to not overflow PA bits when this is used for S2 invalidation.

Scores

CVSSScoreVectorSource
3.19.3 CriticalCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 85bba00425ae0b4b30938ebfdde6d986e5423aff to before 72bce82c4171bf330919ff1b64dc0a36c254ec7dAffected
  • 85bba00425ae0b4b30938ebfdde6d986e5423aff to before 3feb83918e30f0472e058224b926ebfe8a064facAffected
  • 85bba00425ae0b4b30938ebfdde6d986e5423aff to before 2393470085649f0b973ecceb26fe8fc71edde0c1Affected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.51 through 6.18.*Not affected
  • 7.2.5 through 7.2.*Not affected
  • 7.3 and laterNot affected

References

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